A blue and yellow ribbon is seen on a shoe in a public exhibition of objects and mementos left at the makeshift memorials that emerged in the aftermath of the Boston Marathon Bombings in Boston.

Reuters

An assistant poses for a photograph with a Faberge egg during a photo-call at antique dealer Wartski, in central London. The $20 million egg, hailing from the court of imperial Russia, was bought in a U.S. junk market by a scrap metal dealer before it was acquired by Wartski for an unidentified private collector. It will be on display at Wartski's in London for four days in April.

Reuters

Mejra Dzogaz touches the grave of her family member at the Memorial Center in Potocari, Bosnia. Dzogaz lost her three sons, husband and father in the Srebrenica massacre.

Reuters

Pedestrians cross the street as the New York City skyline is obscured by smoke while the area emerges from a smoky haze reportedly from a brush fire in nearby Wharton State Forest.

Reuters

Pope Francis shakes hands with King of Jordan, Abdullah II, during a private audience at the Vatican.

Reuters

Rebel fighters carry their weapons as they walk along a field towards their positions in the town of Babolin in Idlib, Syria.

Reuters

An elderly Indian voter, seen sitting on her son's bicycle, gestures her inked-marked finger as others wait in line to vote outside a polling station in Koliabor. Indians have begun voting in the world's biggest election which is set to sweep the Hindu nationalist opposition to power at a time of low growth, anger about corruption and warnings about religious unrest.

AFP/Getty Images

In this handout image provided by the South Korean Defense Ministry, the wreckage of a crashed drone is seen on a mountain in Samcheok, South Korea. Three drones, believed to be North Korean, have been found in South Korea in recent weeks.

Getty Images

Tai Yai boys are carried in a procession by their relatives during the Poy Sang Long Festival in Mae Hong Son, Thailand. Poy Sang Long is a Buddhist novice ordination ceremony where young boys aged between 7 and 14 are ordained as novices to learn the Buddhist doctrines. It's believed that they will gain merit for their parents by ordaining.

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One of the 16-weeks-old polar bear twins drinks from a water puddle in their enclosure in the zoo in Munich Hellabrunn, southern Germany.

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Performers enter Amahoro Stadium during the commemoration of the 20th anniversary of the 1994 genocide in Kigali, Rwanda. Tens of thousands of Rwandans joined with leaders from around the world at the stadium to remember the country's 1994 genocide, when more than 800,000 ethnic Tutsi and moderate Hutus were slaughtered over a 100-day period.

Getty Images

A historical subway train is used for the 2014 home opener game at Yankee stadium.

Getty Images

Women's Fast For Families participants gather in a tent in Washington DC's National Mall to craft fabric hearts with messages about why they want immigration reform. According to organizers, around 100 women signed up to fast for 48 hours on the National Mall to call for "fair immigration reform and an end to deportations."

Getty Images

Relatives of Chinese passengers onboard Malaysia Airlines Flight 370 pray during a candlelight vigil for their loved ones at a hotel in Beijing, China.

AP

A woman touches a tag hanging on a message tree at an exhibit entitled "Dear Boston: Messages from the Marathon Memorial" at the Boston Public Library in Boston Messages of resilience, solidarity, hope and love are embodied at the memorial exhibit commemorating the anniversary of the Boston Marathon bombings.

AP

The tractor trailer carrying Seward Johnson's sculpture “Forever Marilyn” featuring Marilyn Monroe, parks near PPG Plaza during a stopover on Monday in downtown Pittsburgh. The stopover was the tenth and final on the trip from Palm Springs, Calif., to New Jersey.

AP

Flowers are placed on the Hollywood Walk of Fame star of Hollywood legend, Mickey Rooney, on Vine Street.

AP

Angel Garcia rides his bike through flood waters after heavy rainfall caused major flooding in Pelham, Ala. Severe thunderstorms crawled across the Southeast on Monday, dumping heavy rains and causing flash flooding in central Alabama, where crews in small boats and military trucks had to rescue dozens of people from their homes and cars.

AP

People gather near a barricade with razor wires at the regional administration building in Donetsk, Ukraine. Outside the Donetsk building, a barricade of car tires and razor wire was built up to thwart police from retaking it.

AP

Oscar Pistorius becomes emotional during his trial in Pretoria, South Africa.

Reuters

A woman poses with a Ukrainian and a Russian passport outside an office of the Russian Federal Migration Service, where she received a Russian passport, in the Crimean city of Simferopol.